AD2S80A Analog Devices, Inc., AD2S80A Datasheet - Page 16

• Manufacturer Part Number: AD2S80A
• Description: Variable Resolution, Monolithic Resolver-to-digital Converter
• Manufacturer: Analog Devices, Inc.

Model
AD2S80AJD
AD2S80AKD
AD2S80ALD
AD2S80AAD
AD2S80ABD
AD2S80ASD
AD2S80ATD
AD2S80AUD
AD2S80ASE
AD2S80ATE
AD2S80AUE
AD2S80ASD/883B
AD2S80ATD/883B
AD2S80ASE/883B
AD2S80ATE/883B
AD2S80A
APPLICATIONS
Control Transformer
The ratio multiplier of the AD2S80A can be used independently
of the loop integrators as a control transformer. In this mode the
resolver inputs θ are multiplied by a digital angle φ any differ-
ence between φ and θ will be represented by the AC ERROR
output as SIN ωt sin (θ–φ) or the DEMOD output as sin (θ–φ).
To use the AD2S80A in this mode refer to the “Control Trans-
former” application note.
Dynamic Switching
In applications where the user requires wide band response from
the converter, for example 100 rpm to 6000 rpm, superior per-
formance is achieved if the converters control characteristics are
0.09 (2.29)
0.07 (1.77)
0.125 (3.22)
LEAD NO. 1 IDENTIFIED BY DOT OR NOTCH. LEADS ARE GOLD PLATED
(50 MICROINCHES MIN) KOVAR OR ALLOY 42.
40-Lead Ceramic DIP (D) Package
0.59 (14.99)
TYP
0.100 (2.54) TYP
2.02 (51.31)
1.98 (50.29)
Operating
Temperature
Range
0°C to 70°C
0°C to 70°C
0°C to 70°C
–40°C to +85°C
–40°C to +85°C
–55°C to +125°C
–55°C to +125°C
–55°C to +125°C
–55°C to +125°C
–55°C to +125°C
–55°C to +125°C
–55°C to +125°C
–55°C to +125°C
–55°C to +125°C
–55°C to +125°C
0.012 (0.31)
0.009 (0.23)
0.01 (0.25) TYP
Dimensions shown in inches and (mm).
0.060 (1.52)
0.61 (15.49)
0.58 (14.73)
0.02 (0.51)
OUTLINE DIMENSIONS
0.150
(3.81)
MIN
Accuracy
8 arc min
4 arc min
2 arc min
8 arc min
4 arc min
8 arc min
4 arc min
2 arc min
8 arc min
4 arc min
2 arc min
8 arc min
4 arc min
8 arc min
4 arc min
ORDERING GUIDE
switched dynamically. This reduces velocity offset levels at low
tracking rates. For more information on the technique refer to
“Dynamic Resolution Switching Using the Variable Resolution
Monolithic Resolver-to-Digital Converters.”
OTHER PRODUCTS
The AD2S82A is a monolithic, variable resolution 10-, 12-, 14-
and 16-bit resolver-to-digital converter in a 44-terminal J-leaded
PLCC package. In addition to the AD2S80A functions it has a
VCO OUTPUT which is a measure of position within a LSB,
and a COMPLEMENT Data Output.
The AD2S81A is a low cost, monolithic, 12-bit resolver-to-
digital converter in a 28-lead ceramic DIP package.
Package
Description
Side Brazed Ceramic DIP
Side Brazed Ceramic DIP
Side Brazed Ceramic DIP
Side Brazed Ceramic DIP
Side Brazed Ceramic DIP
Side Brazed Ceramic DIP
Side Brazed Ceramic DIP
Side Brazed Ceramic DIP
Leadless Ceramic Chip Carrier
Leadless Ceramic Chip Carrier
Leadless Ceramic Chip Carrier
Side Brazed Ceramic DIP
Side Brazed Ceramic DIP
Leadless Ceramic Chip Carrier
Leadless Ceramic Chip Carrier
0.100 (2.54)
0.064 (1.63)
NOTES
1
2
THIS DIMENSION CONTROLS THE OVERALL PACKAGE
APPLIES TO ALL FOUR SIDES.
THICKNESS.
ALL TERMINALS ARE GOLD PLATED.
(1.27)
0.050
1
BSC
44-Terminal LCC (E) Package
0.055 (1.40)
0.045 (1.14)
40
28
39
29
0.662 (16.82)
0.640 (16.27)
BOTTOM VIEW
44
1
2
SQ
0.075 (1.91) REF
17
7
18
6
0.028 (0.71)
0.022 (0.56)
0.040 (1.02)
REF
3 PLACES
0.020 (0.51)
REF
Package
Option
D-40
D-40
D-40
D-40
D-40
D-40
D-40
D-40
E-44A
E-44A
E-44A
D-40
D-40
E-44A
E-44A
45°
45°